Build with Go v1.17 to support legacy OS X

[alanhamlett]

Due to golang/go#50855 (comment), binaries built with Go 1.18 won't run on old OS X versions. We could add a build to the release wakatime-cli-darwin-amd64-go1.17.zip and download that when the plugins detect a legacy OS X version.

When running wakatime-cli built with Go 1.18 on legacy OS X we get this error:

dyld: Symbol not found: _utimensat
  Referenced from: /Users/user/.wakatime/wakatime-cli
  Expected in: flat namespace

[alanhamlett]

Instead of building with legacy Go (we depend on new features in Go 1.18) we're going to modify editor extensions to detect legacy OS X platforms and download an old wakatime-cli release. For now, we're implementing this in Xcode, VS Code, and Sublime Text but can add support to more editor plugins if requested.